Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ff993ce9f538ff6…

MALICIOUS

PDF

367.2 KB Created: 2015-08-22 09:19:52 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 98fbd3eebd7dc7a3e8c30d8e13561e2d SHA-1: 7bafa08a83276aef71a577ccbdf9280e757ee829 SHA-256: 5ff993ce9f538ff65ec3d97358f9696368ada2f11493c83ed4e79f9094126c6a
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a machine learning classifier and contains a link to a known malicious redirector. The embedded URL, http://botcraftman.ru/, is likely used to host or redirect to a malicious payload. No scripts were extracted, but the presence of a malicious link suggests an attempt to download further malware or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9946

Heuristics 2

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://botcraftman.ru/?lip&keyword=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B8%D0%B3%D1%80%D1%83+%D0%BB%D0%B5%D0%B3%D0%BE+%D0%B3%D0%B0%D1%80%D1%80%D0%B8+%D0%BF%D0%BE%D1%82%D1%82%D0%B5%D1%80+1-7+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674677_podvodki_k_pesnyam_na_koncerte.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674767_tablica_perevoda_metizov_iz_kg_v_sht.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674642_baza_dannuyh_o_sudimosti_cheloveka_skachat.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057731.bin
3bb8a4870f6553f67a454de9174e2dfb073ce6b3a4c0973490d1cfc401e7f6a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57731 9392 bytes
font_01_sfnt_off000591d2.bin
455bafb73c8338103351dd053c1f1989d9f125c576e0eb909ebf60dd4afc4386		 pdf-font-stream PDF embedded font (sfnt) at offset 0x591D2 13608 bytes

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